If flammable liquids are being pumped with a...

If flammable liquids are being pumped with a...

Question 1 of 270705eccef9ebacbc34ba4d4652f

If flammable liquids are being pumped with a centrifugal pump, you should __________.

Question 1 of 27070

Q

If flammable liquids are being pumped with a centrifugal pump, you should __________.

🔍 Key Concepts

• Centrifugal pump operation with volatile/flammable liquids • What happens when a centrifugal pump becomes vapor bound (loss of suction / loss of prime) • Safety concerns with relief valves and continuous venting when handling flammable cargoes

💭 Think About

• When a centrifugal pump handling a volatile cargo loses prime and becomes vapor bound, what is the safest way to restore positive flow: by changing the discharge valve position, by venting, or by stopping and correcting the problem? • Would continuous venting of a pump casing with flammable vapors be desirable from a fire/explosion-safety standpoint? Why or why not? • What is the purpose of relief valves in cargo systems, and what hazards might arise if you intentionally disable (gag) them while pumping a flammable liquid?

✅ Before You Answer

• Identify which option best helps the pump maintain positive suction and discharge pressure without creating new hazards • Eliminate any option that would intentionally disable a safety device (think: relief valves, vents, protections) • Eliminate any option that would continuously release flammable vapors into the atmosphere during normal operations